'Explore the story' software: provides all the main stories in the Stage in interactive format, with quick-click vocabulary, parsing and derivations. Roughly 50% of the stories also have digital comprehensions via the 'Think' tab;

Dozens of weblinks on the cultural context of each Stage, for further investigation.

Can I view the website for free before deciding whether or not to subscribe?
Yes, free access is currently granted to Stages 1, 2, 13, 14, 21, 22, 29, 30, 35 and 36 to provide an idea of the type and quantity of support available. Why not start by looking at 5th edition, Stage 1 and then navigate to the other free Stages from there?